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Height: 6-8 ft. (1.8-2.4 m) 8-10 ft. (2.4-3 m) 10-12 ft. (3-3.6 m) 12-15 ft. (3.6-4.7 m) 15-20 ft. (4.7-6 m)
Spacing: 8-10 ft. (2.4-3 m) 10-12 ft. (3-3.6 m)
Hardiness: USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F) USDA Zone 11: above 4.5 °C (40 °F)
On Aug 23, 2004, Kylecawaza from Beverly Hills, CA wrote:
This is a weird palm, and a possible candidate for the worlds hardiest palm. It will grow fine if you have a hot summer, and there are even specimens of this palm surviving Spokane Washington, which is comparable with the midwest. In areas such as Seattle, it will survive, but grow slowly with putting out one frond every two years, unless you find a way to make the summers hotter, which is actually happening in the area the past two years. Maybe it will be a permanent trend?
On Jul 13, 2004, aviator8188 from Murphysboro, IL (Zone 7a) wrote:
Native to Afghanistan, this palm seems to really tolerate the full spectrum of extreme termperatures, from as cold as 0deg.F and as hot as >120deg.F. This palm produces multiple trunks.
On Aug 30, 2003, palmbob from Tarzana, CA (Zone 9b) wrote:
THis is one of the most versatile palms in terms of variety of climates in which it will survive. It is a native of the middle east, where it somehow makes it on almost no water, blazing heat and snowy cold, intense winds and shrapnel abuse. This is a very attractive palm when tended to, having silvery blue leaves (some forms have sea green leaves to almost 'ordinary' green coloration). It is a suckering as well as a branching palm, and monocarpic (so after flower, that particular stalk dies... but the palm survives). I have seen this palm withstand 125F heat without a problem, and snow. It grows great in tropical Florida, and here in the So Cal deserts. However, it is a bit touchy as a seedling and can be difficult to keep from rotting before it's fully established.
Regional...
This plant has been said to grow in the following regions:
, (2 reports) Arcadia, California Los Angeles, California Reseda, California Thousand Oaks, California Westminster, California Palm Bay, Florida Venice, Florida Chicago, Illinois Austin, Texas